10^15 = 1,000,000,000,000,000 (one quadrillion).
One quadrillionth.
10^15 power
"Second power" means that you multiply something with itself. In this case, (10 + 15) (10 + 15).
It is: 1.3*10^15 = 1,300,000,000,000,000
10 to the power of -15 is 1/10^15. (1/1,000,000,000,000,000 [15 zeroes])It can also be written as 0.000000000000001 (There are 15 zeroes).OR -1,000,000,000,000,000 (15 zeroes).
1000000000000000000 that is the answer
15 x 10-3 = 15 ÷ 103 = 15 ÷ 1000 = 0.015
25
10 to the 63rd power
25
10 to the power of 15 when multiplying items with the same base (in this case 10) you simply add the powers